Hm you don't think it is worth it to see the white villages by car ? I figured we could see a few by car. Otherwise would just train straight from Seville to Granada, skipping Ronda and the white vlllages all together.

With the time you have, no, I don't think the white villages would be worth it. JMO. And if you do want to visit Ronda, you can do it without a car. But it's your trip, your call!